c:n
-..J
N
.r:..
w
__.
-Zl
(B-138)
TRIP-OFF
SCREW
ADJUSTMENT (Figure 49)
'lbere
should be some clearance, not mre than .00211, between the stop
lever
and
the trip latch when the
arma
ture is
in
the unoperated posi. tion and
the selector cam sleeve is rotated until the stopping edge of the stop lever
is
directly beside the latching surface of the trip latch.
The trip latch plunger should ·have at least .002" end plq (See
Figure 48)
when
the armature is held in the attracted position and with the stop
lever against its eccentric scr�.
To adjust, loosen the trip-off screw lock nut and position the screw
to met the first requirement. The latter requirement serves as a check on the
trip-off screw adjustment
and
also on the adjustment of the selector magnet
bracket.
END OF HOLDING VAGNET
SEIJX:TOR
MEnHANISM
ADJUSTMni'TS
REl()VE
THE TYPE BAR CARRIAGE
PI.A.TEN
UNIT
PILOT
SCRE\\'S
ADJUST�T
The platen unit should be midwq between the side frames
and.
should
be
free on its bearings without em plq. To ad.just, place the typing unit in
its normal upright position. Disconnect the line feed
and
shift-unshift verti
cal link at the UpPer shoulder screws. (See Figures 50 and 53) Unhook the
platen balance spring
and
the shift-unshift detent spring. Then position the
platen unit
by
means of its pilot screws to meet the first requir
emen
t.
ThEil
back off one pUot screw until the platen unit has some ern play.
Tum
the
pilot screw in just
enough
to take up the ern play. Replace the platen balance
spring
and
shift-unshitt detent spring and reconnect the line feed and shift
unshift vertical
link .
(Care should be taken not
to
tighten the pilot screws
to the extent that they cause a strain on the side frames.)
PLATJ!M SHIFT-UNSHIFT STOP
POST ADJUSTMENT
The top am bottom surfaces of the platen shift-unshitt stop post
should be parallel
to
a line through the center of the platen detent roller
screw
ancl
the platen pilot screw. To atijust, loosen the platen shift-unshitt
stop post nut and rotate the post.
(See Figure 50 for location of parts.)
REPLACE THE TYPE BAR CARRIAGE
UN SHIFT STOP
SCRDI
(LETTERS)
ADJUSTmlT
With the platen
in
the UNSHIFT position and the letter
N
type bar
held lightly against the platen, the face of the letter
N
should conform
to
the
c
urva
ture of the platen when viewed along the axis of the platen.
A
further
check
mq
be made by
inserting
a sheet of paper with a carbon in the printer
and pressing the letter N
firmly
against the platen. The impression made
on
the paper should be of uniform shade. To adjust, raise the UNSHIFT stop screw
if the shading is lighter at the bottom or the character
and
lower it
it
the
shading is lighter at the top.
(See Figure 50 for location
of
parts.)
